kyverno-values.yaml

backgroundController:
  rbac:
    clusterRole:
      extraResources:
        - apiGroups:
            - apps
          resources:
            - statefulsets
          verbs:
            - get
            - list
            - watch
            - update
            - patch

postgres-operator-fix-owner-references.yaml

apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: postgres-operator-fix-owner-references
  annotations:
    policies.kyverno.io/title: Fix postgres-operator owner references
    policies.kyverno.io/category: Postgres-operator
    policies.kyverno.io/subject: Statefulset
    policies.kyverno.io/description: >-
      Postgres-operator doesn't set ownerReferences on statefulsets created from
      postgresql resources. Consequently ArgoCD doesn't know about the
      statefulset, and doesn't show it in the UI.

      PR with fix: https://github.com/zalando/postgres-operator/pull/2199
spec:
  mutateExistingOnPolicyUpdate: true
  rules:
    - name: add-owner-references-to-existing-resources
      match:
        any:
          - resources:
              kinds:
                - acid.zalan.do/v1/postgresql
      mutate:
        targets:
          - apiVersion: apps/v1
            kind: StatefulSet
            name: "{{ request.object.metadata.name }}"
            namespace: "{{ request.object.metadata.namespace }}"
        patchStrategicMerge:
          metadata:
            ownerReferences:
              - apiVersion: "{{ request.object.apiVersion }}"
                kind: "{{ request.object.kind }}"
                name: "{{ request.object.metadata.name }}"
                uid: "{{ request.object.metadata.uid }}"
                blockOwnerDeletion: false
                controller: true